* {
    padding: 0;
    margin: 0;
}

html {
    font-size: 10px;
}

li {
    list-style: none;
}

.fl {
    float: left;
}

.fr {
    float: right;
}

.clear:after {
    content: "";
    display: block;
    clear: both;
}


/* 头部 */

header {
    width: 100%;
    height: 20rem;
    background: linear-gradient(to left, #ff5401, #ffa40d);
    border-radius: 0 0 50% 50%;
}

header nav {
    height: 5rem;
    width: 100%;
    position: fixed;
    background: linear-gradient(to left, #ff5401, #ffa40d);
    padding-left: 1rem;
    z-index: 1;
}

header nav ul li {
    margin-left: 2.2rem;
    margin-top: 0.6rem;
}

header nav ul li img {
    width: 4rem;
    height: 4rem;
}

header nav ul li input {
    width: 15rem;
    height: 3.5rem;
    margin-top: 0.2rem;
    border: none;
    background: #fcb783;
    padding-left: 4rem;
}

header nav ul li:nth-child(2) img {
    width: 2rem;
    height: 2rem;
    left: 2rem;
    position: absolute;
    left: 10rem;
    top: 1.5rem;
}


/* 1 */

#con {
    position: relative;
    top: -14rem;
    left: 0rem;
    padding-bottom: 2rem;
}

#con #con1 ul {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

#con #con1 ul li {
    color: white;
    margin-left: 2rem;
    font-size: 13px;
}

#con #con1 p img {
    width: 90%;
    margin-left: 2rem;
}


/* 2 */

#con2 ul {
    margin-left: 1rem;
    text-align: center;
}

#con2 ul li {
    margin-left: 3rem;
    margin-top: 2rem;
}

#con2 ul li img {
    width: 5rem;
    height: 5rem;
    border-radius: 50%;
}


/* 3*/

#con3 ul {
    margin-top: 2rem;
}

#con3 ul li:nth-child(1) img {
    width: 17rem;
    height: 15rem;
    margin-left: 1rem;
    border-radius: 6%;
}

#con3 ul li:nth-child(2) p img {
    width: 17rem;
    height: 7em;
    margin-left: 1rem;
    border-radius: 6%;
}

#con3 ul li:nth-child(2) p:nth-child(2) img {
    margin-top: 0.6rem;
}

.hr {
    width: 90%;
    height: 0.2rem;
    background: #cdcdcd;
    margin-left: 2rem;
    margin-top: 2rem;
}

footer {
    margin-top: 3rem;
    padding-bottom: 2rem;
    text-align: center;
}

footer ul {
    padding-left: 1rem;
    border-top: 2px solid #dcdcdc;
}

footer ul li {
    margin-left: 3.5rem;
}

footer ul li img {
    width: 3rem;
    height: 2rem;
}